The state Department of Transportation this week started work on a project to improve traffic in Newtown in the area of exit 11.  The proposed improvements on the highway ramps and on Route 34 at Wasserman Way and at Toddy Hill Road will also improve safety by providing auxiliary turning lanes, realign intersections, create better sight lines and add sidewalks.  First Selectman Dan Rosenthal says that's important for students who walk to the nearby High School.  Route 34 will be widened to accommodate a westbound bypass width shoulder for the high school driveway.  Sidewalks are also  proposed in the area by the commuter lot.  The 25 million dollar project is expected to take 2-and-a-half years to complete.